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Draw a labelled circuit diagram of a potentiometer to measure the internal resistance ‘r’ of a…
Draw a labelled circuit diagram of a potentiometer to measure the internal resistance ‘r’ of a cell. Write the working formula (derivation is not required).
Draw: Circuit diagram of a potentiometer to measure internal resistance of a cell
Must show: Potentiometer wire, Driving cell / accumulator, Rheostat, Key, Test cell with internal resistance r, Resistance box, Galvanometer, Jockey
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From ISC 2019 Physics Paper 1, question 15(b).